[1] The University of Texas MD Anderson Cancer Center,Department of Surgical Oncology
[2] The University of Texas MD Anderson Cancer Center,Department of Clinical Nutrition
[3] The University of Texas MD Anderson Cancer Center,Department of Psychiatry
[4] Université Laval,Institut universitaire de cardiologie et de pneumologie de Québec
[5] The University of Texas MD Anderson Cancer Center,Department of Biostatistics